This is a fantastic project and wonderful results. I alway wondered how they did it and what all of the pictures were.

I did not consider that. I’ll have to revisit my setup to see what I can do to include vacuum seal as an added step.

As another said M-discs are a great way to move data to a more permanent solution that is only writable. Alternatively making a copy of data you know won’t change very much or at all and have those files copied to a solid state drive. Those will last a lot longer on a shelf than hdd drives with discs that spin. Preferably you’d also want to make sure your cold storage is low humidity and temp controlled. If you can’t control both lean on controlling the temp and keep it regular, mid 50’s °F would probably work.

Back in the day 20+ years ago my family decided to own a business class blade server, not a whole server, just one blade, to back up and store our family videos and photos that had been scanned. Due to the cost of the single blade even second hand my father didn’t have good opsec for backups. Lo and behold a year or so the blade failed and my father and I spent the better part of a week defragging and recovering photos. We lost gigabytes of photos and spent another week+ rescanning what was still scannable. So 20 years down the road I have my own sever in rai 5, a cold storage backup, and a cloud storage backup just in case.

Perfect thank you.

OP, I’ve been trying to fiddle around with doing slots on a scroll saw for something similar to this. Any chance your dad has a pic of the parts taken apart so I can get an idea of how they did it?